"We love our Great Plains Disc-O-Vator® 8552. The front disc gang does a great job of cutting through tall weeds or standing corn stalks. It does a great job of not ridging. The rear harrow leaves a level seedbed that is perfect for planting. We have also owned a Turbo-Till 2200 for over 10 years now. The Turbo-Till works great on corn stalks in the fall or in the spring just before planting. We also use the Turbo-Till on our strip mine ground where conventional tillage cannot be used. On the strip mine ground, it does a great job of incorporating residue without kicking up rocks.